Magazine Article

Practical UAV Optical Sensor Bench With Minimal Adjustability

TBMG-15984

03/01/2013

Abstract
Content

A multiple-pass optical platform eliminates essentially all optical alignment degrees of freedom, save one. A fourpass absorption spectrometer architecture is made rigid by firmly mounting dielectric-coated mirror prisms with no alignment capability to the platform. The laser diode beam is collimated by a small, custom-developed lens, which has only a rotational degree of freedom along the standard optical “z” axis. This degree is itself eliminated by adhesive after laser collimation. Only one degree of freedom is preserved by allowing the laser diode chip and mount subassembly to move relative to the collimating lens by using over-sized mounting holes. This allows full 360° motion of a few millimeters relative to the lens, which, due to the high numerical aperture of the lens, provides wide directional steering of the collimated laser beam.

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Citation
"Practical UAV Optical Sensor Bench With Minimal Adjustability," Mobility Engineering, March 1, 2013.
Additional Details
Publisher
Published
Mar 1, 2013
Product Code
TBMG-15984
Content Type
Magazine Article
Language
English